A short spar under the cap of the bowsprit used for holding down a jib boom.

The essential fittings and equipment of a ship, such as anchors, rigging, masts, davits, derricks, winches, etc., excluding her consumable stores such as water, fuel and victuals.

A navigational aid used in the United States and Canada to mark a channel. Green triangular daymarks should be kept on the left when returning from a larger to smaller body of water.

An audible or visual discharge at a pressure slightly lower than the set pressure on a valve. Warns the operator that the valve is about to open.

Forcing material into the seams of the planks in a boat's deck or sides to make them watertight; the material itself. Oakum was once the material used for this purpose, and was then sealed with hot pitch to prevent it from rotting. Today there are polymer ...

(1) To fill a space (room) with water; (2) A rising tide.

Shoal area between two navigational channels.

A bulkhead placed athwartships.

A compartment where the crew lives.

A term used to cover all of the anchor gear.

This property is the ratio of the specific weight of air or gas to that of dry air at the same pressure and temperature.

An old expression meaning heartily or quickly.

A change in the wind direction.

A knot with two half hitches loops - on the standing part of the line.

The tensile or compressive loading on the crosshead assembly with compressive piston rod loading on the outward stroke and tensile piston rod loading on the inward stroke.

A draft payable on demand upon presentation.

When a boat has two separate fins, instead of a centerboard or keel, they are referred to as bilge boards.

Also stability sail or riding sail. Any small sail set to help the boat maintain its direction without necessarily moving, as when at anchor or in heavy weather.

A survey that shows how much energy you use in your compressed air generation. It will help find ways to use energy more efficiently.2. A survey that shows how much energy you use in your house or apartment. It will help you find ways to use less energy.

Voyage made in varying directions. To sail in various directions for pleasure, in search, or for exercise.